Prior Restraint

 In First Amendment law, a prior restraint is government action that prohibits speech or other expression before it can take place.  There are two common forms of prior restraints. The first is a statute or regulation that requires a speaker to acquire a permit or license before speaking, and the second is a judicial injunction that prohibits certain speech. Both types of prior restraint are strongly disfavored, and, with some exceptions, generally unconstitutional.